1. Responsible for verifying the user's identity and issuing electronic signature authentication certificates to users while ensuring the authenticity of the user's identity. It is a professional department that issues and manages the certificates for e-government, e-commerce and other applications. Provides certificate authentication security services such as online identity authentication and electronic signatures.

2. Features: Electronic certification services refer to activities that provide authenticity and reliability verification for all parties involved in electronic signatures. Electronic certification service provider refers to an organization that provides certification services for electronic signatures that require third-party certification (hereinafter referred to as "electronic certification service organization").